&sq=Google&lang=en&file=File:Question_book-new.svg){kind=small} | This article needs additional citations for verification. (April 2009) |
A bob is a heavy object (also called a "weight" or "mass") on the end of a pendulum found most commonly, but not exclusively, in pendulum clocks.
| This article needs additional citations for verification. (April 2009) |
A bob is a heavy object (also called a "weight" or "mass") on the end of a pendulum found most commonly, but not exclusively, in pendulum clocks.